CVE-2026-105716: Microsoft Office Access Remote Code Execution Vulnerability

Published Oct 13, 2026
·
Updated

Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.

Other sources

Microsoft Office Access Remote Code Execution Vulnerability

— Microsoft

Affected Software

7 affected componentsFixes available
Microsoft Office Access
Microsoft 365 Apps for Enterprise<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2021 for 32-bit editions<16.0.14334.20974
16.0.14334.20974
Microsoft 365 Apps for Enterprise<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2024 for 32-bit editions<16.0.17932.21056
16.0.17932.21056
Microsoft Office LTSC 2021 for 64-bit editions<16.0.14334.20974
16.0.14334.20974
Microsoft Office LTSC 2024 for 64-bit editions<16.0.17932.21056
16.0.17932.21056

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in https://aka.ms/OfficeSecurityReleases
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.0.14334.20974
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.0.17932.21056

Event History

Oct 13, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·06:59 PM
Data Sourced
via MITRE·06:59 PM
DescriptionSeverity

Frequently Asked Questions

1

Which installations should be reviewed for exposure?

Review systems running Microsoft 365 Apps for Enterprise, Microsoft Office Access, or Microsoft Office LTSC 2021 or 2024 in either 32-bit or 64-bit editions.

2

Does exploitation require an attacker to have an account or prior privileges?

No. The vulnerability is rated PR:N and is described as exploitable by an unauthorized attacker.

3

Is user interaction required for exploitation?

Yes. The CVSS vector includes UI:R, indicating that user interaction is required.

Contact

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